Back up lights on 2000 corvette won't work.

Fuse 20 (30 amp), passenger compartment fuse panel. See owners manual.

Remove and it will make all power locks and hatch inoperable (electrically) and you will be required to manually lock/unlock all doors and use a key to unlock the drivers door to gain entry into a locked vehicle. The hatch will not operate as it is not mechanical release as are the doors.

If you want only to disable the key pad, you will need to disconnect the pad from the smart junction box... not a task for the average owner. It may also cause a CEL/MIL indication.

If you want to test removing fuse 20, roll down the windows prior so you have access if key entry somehow fails.

You could wire a switch (30 Amp) into the fuse 20 circuit and have a selectable on/off so you have hatch release or all functions when wanted.

1. Test your door lock operation.
2. Test all the fuses in each circuit.
3. Test the electrical relay.
4. Decide on the best solution to repair faulty door lock switches.
5. Replace any malfunctioning central door locking units.
6. Test the system on completion to assure 100% operation

There was a related post in 2011 which may or may not help you troubleshoot .... from a Lincoln Master:
What is the fuse box number for locks 2003 Lincoln Navigator
If your fuse box is the same as this one ... then fuse #30 is the door locks ... plus other things. If your fuse is good (although I would test a new fuse in that slot to be sure) or if in inoperable stuff is different ... then you have some other issue going on

The keyless entry system consists of the following components:

• driver door module (DDM)
• keyless entry transmitter
• keyless entry keypad

The driver door module (DDM) receives inputs from the digital transmission range (TR) sensor, ignition switch, brake switch, window/door lock switches, lighting control module (LCM), keyless entry keypad switch and remote transmitter. The DDM outputs consists of keyless entry keypad switch illumination, power door lock actuators, luggage compartment release solenoid, horn relay, and lighting control module (LCM).

• Battery junction box (BJB) fuses:
  • circuit breaker 7 (20A)
• Central junction box (CJB)
  • 4 (10A)
  • 6 (15A)
  • 8 (25A)
  • 13 (5A)
• Keyless entry keypad switch
• Power door lock actuator
• Luggage compartment release switch
• Luggage compartment release solenoid
• Connectors or connections
• Wiring harness
• If fuse's good have checked for DTC'S - diagnostic trouble codes .
• B1526 Keyless Entry Circuit Short to Ground DDM Go To Pinpoint Test E . B1553 Decklid Release Circuit Short to Battery DDM Go To Pinpoint Test B . B1751 Park/Neutral Switch Circuit Short to Battery DDM Go To Pinpoint Test K . B2425 Remote Keyless Entry Out of Synchronization DDM Go To Pinpoint Test L Need a professional grade scan tool to check fro these codes . Not a code reader for OBD2 codes .

• The doors do not lock/unlock using the remote transmitter

• Remote transmitter not programmed.
• Remote transmitter.
• DDM.

• Go To Pinpoint Test F .

Did you program the new key fob ?

Remote Transmitter Programming NOTE: All remote transmitters are programmable and must be set at the same time.

1. Turn the key from OFF to RUN four times within three seconds, ending in RUN. The locks will then lock and unlock, confirming program mode has been entered.

1. Press any button on each remote transmitter to be programmed. The doors will lock and unlock to confirm that each remote transmitter has been programmed.

1. If additonal remote transmitters are to be programmed, repeat Step 3 within 7.5 seconds or steps 2 and 3 if more than 7.5 seconds have elapsed.

1. To exit program mode, turn the ignition to START or wait 7.5 seconds.

1. NOTE: Failure to wait at least 20 seconds will cause programming failures. Wait at least 20 seconds after turning the key to OFF or after the last remote transmitter has been programmed to activate a remote transmitter for testing or verification

take out the dome light and see if that stops the short> if it does replace the dome light.

Your problem lies within the rear fuse panel now there are about 15 relays and you need to find the gremlin switch them around keep your key fob and keep trying until u figure out the bad relay I guarantee this is your problem.. regards Chris

The security light is a indicator that one of the parts of the antitheft system is failing, this then disables parts of the car due to the antitheft thinking that the car is being stolen. You may have broken something while turning the ignition when trying to learn your key fob. Did you make sure to pull the radio fuse before trying the key fob process? A lot of GM's 2000 to 2004ish ran the antitheft thru the radio. Its really hard to tell. Here is a link that explains the anti theft system. A lot of information and some ways to get around the system.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

Here is what i found for reprogramming your key fob remote

1. Be sure ignition is OFF.

2. Remove RADIO fuse from fuse box. Fuse will be number 17 and located at LH side of instrument panel.

3. Turn ignition from OFF to RUN 3 times within 5 seconds ending in the RUN position. Off is the position where you can remove your key and Run is the position shy of starting your vehicle (do not crank engine or start vehicle). Be sure you are turning the key from off to run quickly.

4. Doors will Lock and Unlock indicating entry into programming mode.

5. Hold Lock and Unlock at the same time on first remote for approximately 15 seconds. Vehicle will respond by locking and unlocking doors indicating successful programming.

6. Repeat step 5 for each additional remote including working remotes.

7. Switch ignition off. Replace RADIO fuse. Test all remotes.

Check the light bulbs.

Replace the "lock" relay, found behind the fuse box. You have to stick your head where the gas pedal is, and look at the top end of the back of the fuse panel. There are 2 small square plastic boxes. Unplug them, spray them with electrical cleaning spray, and switch their spots. If everything works, there was some contact problem, if door will now lock but not unlock, one of the relays is bad. Part number "HMC DECO 95225 - 38300".

You probably caused a short circuit when you changed the light. Change fuse #14. Next time, don't turn the lights on until you are finished changing the lights.